Its a it is a vertical plank of wood you might have on your fence
The correct answer is letter A (lamented). This is so because the blank comes immediately after the subject of the sentence, which means that a verb is needed to define the action or state.
That is because there is no specific character development or purpose or use of the character. His purpose and use is to be the evil that would get beaten by the main character, in this case Beowulf.
B asyndenton is the answer. No further explanation